Assertion : Gill-lamellae in aquatic animals help in exchange of gases.
Reason : Each gill lamella carries many blood capillaries.

How do plants and animals help each other in the exchange of gases in the atmosphere?

How do plants and animnals help each other in the exchange of gases in the atmosphere ?

Assertion : Aerobic respiration involves the exchange of respiratory gases twice. Reason : Exchange occurs from lung to heart and then heart to lung.

Assertion : Aerobic respiration involves the exchange of respiratory gases twice. Reason : Exchange occurs from lung to heart and then heart to lung.

Assertion:- The aquatic mammals like Dolphins whales etc. do not contain gill slits. Reason : Their adaptation to aquatic life is secondary.

Assertion :- The aquatic mammals like Dolphins whales etc. do not contain gill slits. Reason : Their adaptation to aquatic life secondary.